fix(Tests): Add missing `build` command.
fix(Tests): Add missing `build` command.

Closes #1210

PiperOrigin-RevId: 192186745

chalin/angular2,matanlurey/angular,angulardart/angular,matanlurey/angular,chalin/angular2,angulardart/angular,angulardart/angular,chalin/angular2,matanlurey/angular